Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! 
How to use getRootHostContext method in Playwright Internal
Best JavaScript code snippet using playwright-internal
babylonjs-renderer.spec.js
Source:babylonjs-renderer.spec.js 
...125 describe("getRootHostContext", function() {126 setup();127 it("should getRootHostContext to the parent", function() {128 const container = { props: { a: 1 } };129 expect(this.target({}).getRootHostContext(container)).equals(130 container.props131 );132 });133 });134 describe("getChildHostContext", function() {135 setup();136 it("should getChildHostContext to the parent", function() {137 const parentContext = { a: 1 };138 const type = "type-123";139 const rootContainer = { name: "rootContainer" };140 const expected = {141 a: 1,142 type,143 rootContainer,...
renderer.js
Source:renderer.js
1import Reconciler from 'react-reconciler'2import { createElement, updateElement } from './helpers.js'3const logRenderCalls = false4const getRootHostContext = (rootContainerInstance) => {5 if (logRenderCalls) log('getRootHostContext')6 return {}7}8const getChildHostContext = (9 parentHostContext,10 type,11 rootContainerInstance12) => {13 if (logRenderCalls) log('getChildHostContext')14 return parentHostContext15}16const getPublicInstance = (instance) => {17 if (logRenderCalls) log('getPublicInstance')18 return instance19}20const prepareForCommit = (containerInfo) => {21 // Noop22}23const resetAfterCommit = (containerInfo) => {24 // Noop25}26const createInstance = (27 type,28 props,29 rootContainerInstance,30 hostContext,31 internalInstanceHandle32) => {33 if (logRenderCalls) log('createInstance ' + type)34 return createElement(type, props)35}36const appendInitialChild = (parentInstance, child) => {37 if (logRenderCalls) log('appendInitialChild')38 if (parentInstance.name === 'Paragraph') {39 parentInstance.root.appendChild(child)40 } else {41 parentInstance.appendChild(child)42 }43}44const finalizeInitialChildren = (45 parentInstance,46 type,47 props,48 rootContainerInstance,49 hostContext50) => {51 if (logRenderCalls) log('finalizeInitialChildren')52 return false53}54const prepareUpdate = (55 instance,56 type,57 oldProps,58 newProps,59 rootContainerInstance,60 hostContext61) => {62 // Computes the diff for an instance. Fiber can reuse this work even if it63 // pauses or abort rendering a part of the tree.64 // log('prepareUpdate')65 return true66}67const shouldSetTextContent = (type, props) => {68 if (logRenderCalls) // log('shouldSetTextContent')69 return false70}71const shouldDeprioritizeSubtree = (type, props) => {72 if (logRenderCalls) log('shouldDeprioritizeSubtree')73 return false74}75const createTextInstance = (76 text,77 rootContainerInstance,78 hostContext,79 internalInstanceHandle80) => {81 if (logRenderCalls) log('createTextInstance: ' + text)82}83const scheduleTimeout = setTimeout84const cancelTimeout = clearTimeout85const noTimeout = 086const now = Date.now87const isPrimaryRenderer = true88const warnsIfNotActing = true89const supportsMutation = true90const appendChild = (parentInstance, child) => {91 if (logRenderCalls) log('appendChild')92 if (parentInstance.name == 'Paragraph') {93 parentInstance.root.appendChild(child)94 } else {95 parentInstance.appendChild(child)96 }97}98const appendChildToContainer = (parentInstance, child) => {99 if (logRenderCalls) log('appendChildToContainer')100 parentInstance.root = child101}102const commitTextUpdate = (textInstance, oldText, newText) => {103 if (logRenderCalls) log('commitTextUpdate')104 textInstance.text = newText105}106const commitMount = (instance, type, newProps, internalInstanceHandle) => {107 // Noop108}109const commitUpdate = (110 instance,111 updatePayload,112 type,113 oldProps,114 newProps,115 internalInstanceHandle116) => {117 if (logRenderCalls) log('commitUpdate')118 updateElement(instance, type, oldProps, newProps)119}120const insertBefore = (parentInstance, child, beforeChild) => {121 // TODO Move existing child or add new child?122 if (logRenderCalls) log('insertBeforeChild')123 log(parentInstance.name)124 parentInstance.insertBeforeChild(child, beforeChild)125}126const insertInContainerBefore = (parentInstance, child, beforeChild) => {127 if (logRenderCalls) log('Container does not support insertBefore operation')128}129const removeChild = (parentInstance, child) => {130 if (logRenderCalls) log('removeChild')131 parentInstance.removeChild(child)132}133const removeChildFromContainer = (parentInstance, child) => {134 if (logRenderCalls) log('removeChildFromContainer')135 // TODO undefined / placeholder136 parentInstance.root = new PlaceholderElement()137}138const resetTextContent = (instance) => {139 // Noop140}141const hostConfig = {142 getPublicInstance,143 getRootHostContext,144 getChildHostContext,145 prepareForCommit,146 resetAfterCommit,147 createInstance,148 appendInitialChild,149 finalizeInitialChildren,150 prepareUpdate,151 shouldSetTextContent,152 shouldDeprioritizeSubtree,153 createTextInstance,154 scheduleTimeout,155 cancelTimeout,156 noTimeout,157 now,158 isPrimaryRenderer,159 warnsIfNotActing,160 supportsMutation,161 appendChild,162 appendChildToContainer,163 commitTextUpdate,164 commitMount,165 commitUpdate,166 insertBefore,167 insertInContainerBefore,168 removeChild,169 removeChildFromContainer,170 resetTextContent,171}...
ReactFiberHostContext.new.js
Source:ReactFiberHostContext.new.js
...42 // Track the context and the Fiber that provided it.43 // This enables us to pop only Fibers that provide unique contexts.44 push(contextFiberStackCursor, fiber, fiber);45 // Finally, we need to push the host context to the stack.46 // However, we can't just call getRootHostContext() and push it because47 // we'd have a different number of entries on the stack depending on48 // whether getRootHostContext() throws somewhere in renderer code or not.49 // So we push an empty value first. This lets us safely unwind on errors.50 push(contextStackCursor, NO_CONTEXT, fiber);51 const nextRootContext = getRootHostContext(nextRootInstance);52 // Now that we know this function doesn't throw, replace it.53 pop(contextStackCursor, fiber);54 push(contextStackCursor, nextRootContext, fiber);55}56function popHostContainer(fiber ) {57 pop(contextStackCursor, fiber);58 pop(contextFiberStackCursor, fiber);59 pop(rootInstanceStackCursor, fiber);60}61function getHostContext() {62 const context = requiredContext(contextStackCursor.current);63 return context;64}65function pushHostContext(fiber ) {...
ReactFiberHostContext.old.js
Source:ReactFiberHostContext.old.js
...42 // Track the context and the Fiber that provided it.43 // This enables us to pop only Fibers that provide unique contexts.44 push(contextFiberStackCursor, fiber, fiber);45 // Finally, we need to push the host context to the stack.46 // However, we can't just call getRootHostContext() and push it because47 // we'd have a different number of entries on the stack depending on48 // whether getRootHostContext() throws somewhere in renderer code or not.49 // So we push an empty value first. This lets us safely unwind on errors.50 push(contextStackCursor, NO_CONTEXT, fiber);51 const nextRootContext = getRootHostContext(nextRootInstance);52 // Now that we know this function doesn't throw, replace it.53 pop(contextStackCursor, fiber);54 push(contextStackCursor, nextRootContext, fiber);55}56function popHostContainer(fiber ) {57 pop(contextStackCursor, fiber);58 pop(contextFiberStackCursor, fiber);59 pop(rootInstanceStackCursor, fiber);60}61function getHostContext() {62 const context = requiredContext(contextStackCursor.current);63 return context;64}65function pushHostContext(fiber ) {...
e68c4187258c40eb815c6820eb32e1371a3792ReactFiberHostContext.js
Source:e68c4187258c40eb815c6820eb32e1371a3792ReactFiberHostContext.js
...17 return rootInstance;18 }19 function pushHostContainer(fiber, nextRootInstance) {20 push(rootInstanceStackCursor, nextRootInstance, fiber);21 var nextRootContext = getRootHostContext(nextRootInstance);22 push(contextFiberStackCursor, fiber, fiber);23 push(contextStackCursor, nextRootContext, fiber);24 }25 function popHostContainer(fiber) {26 pop(contextStackCursor, fiber);27 pop(contextFiberStackCursor, fiber);28 pop(rootInstanceStackCursor, fiber);29 }30 function getHostContext() {31 var context = contextStackCursor.current;32 invariant(context != null, 'Expected host context to exist. This error is likely caused by a bug ' + 'in React. Please file an issue.');33 return context;34 }35 function pushHostContext(fiber) {...
30afc5f3fbdabaccfe3e856bdb9a0ae08b6324ReactFiberHostContext.js
Source:30afc5f3fbdabaccfe3e856bdb9a0ae08b6324ReactFiberHostContext.js
...17 return rootInstance;18 }19 function pushHostContainer(fiber, nextRootInstance) {20 push(rootInstanceStackCursor, nextRootInstance, fiber);21 var nextRootContext = getRootHostContext(nextRootInstance);22 push(contextFiberStackCursor, fiber, fiber);23 push(contextStackCursor, nextRootContext, fiber);24 }25 function popHostContainer(fiber) {26 pop(contextStackCursor, fiber);27 pop(contextFiberStackCursor, fiber);28 pop(rootInstanceStackCursor, fiber);29 }30 function getHostContext() {31 var context = contextStackCursor.current;32 invariant(context != null, 'Expected host context to exist. This error is likely caused by a bug ' + 'in React. Please file an issue.');33 return context;34 }35 function pushHostContext(fiber) {...
ReactFiberHostContext.js
Source:ReactFiberHostContext.js
...29 // Track the context and the Fiber that provided it.30 // This enables us to pop only Fibers that provide unique contexts.31 push(contextFiberStackCursor, fiber, fiber);32 // Finally, we need to push the host context to the stack.33 // However, we can't just call getRootHostContext() and push it because34 // we'd have a different number of entries on the stack depending on35 // whether getRootHostContext() throws somewhere in renderer code or not.36 // So we push an empty value first. This lets us safely unwind on errors.37 push(contextStackCursor, NO_CONTEXT, fiber);38 // æ¿äºä¸ä¸ªnameSpace, ææ¶ä¸ç¥éå¹²åç39 const nextRootContext = getRootHostContext(nextRootInstance);40 // Now that we know this function doesn't throw, replace it.41 pop(contextStackCursor, fiber);42 push(contextStackCursor, nextRootContext, fiber);43}44export function pushHostContext(fiber) {45 const rootInstance = requiredContext(rootInstanceStackCursor.current);46 const context = requiredContext(contextStackCursor.current);47 const nextContext = getChildHostContext(context, fiber.type, rootInstance);48 // Don't push this Fiber's context unless it's unique.49 if (context === nextContext) {50 return;51 }52 // Track the context and the Fiber that provided it.53 // This enables us to pop only Fibers that provide unique contexts....
SlackRenderer.js
Source:SlackRenderer.js
...27 return true;28 },29 resetAfterCommit: noop,30 resetTextContent: noop,31 getRootHostContext: function getRootHostContext(rootInstance) {32 return getHostContextNode(rootInstance);33 },34 getChildHostContext: function getChildHostContext() {35 return {};36 },37 shouldSetTextContent: function shouldSetTextContent(type, props) {38 return false;39 },40 now: Date.now,41 useSyncScheduling: true,42 mutation: {43 appendChild: function appendChild(parentInstance, child) {44 parentInstance.appendChild(child);45 child.parent = parentInstance;...
Using AI Code Generation
1const playwright = require('playwright');2const { getRootHostContext } = require('playwright/lib/server/dom.js');3(async () => {4 const browser = await playwright.chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const rootHostContext = getRootHostContext(page);8 console.log(rootHostContext);9 await browser.close();10})();11{12 _context: {13 _browser: {14 },15 _options: {16 },17 _timeoutSettings: TimeoutSettings { _defaultTimeout: 30000 },18 _logger: Logger {19 },20 _screenshotTaskQueue: TaskQueue {21 },22 _browserOptions: {
Using AI Code Generation
1const { getRootHostContext } = require('playwright/lib/server/chromium/crPage');2const { getRootHostContext } = require('playwright/lib/server/firefox/ffPage');3const { getRootHostContext } = require('playwright/lib/server/webkit/wkPage');4const rootHostContext = getRootHostContext(page);5console.log(rootHostContext);6const { chromium } = require('playwright');7const browser = await chromium.launch();8const context = await browser.newContext();9const page = await context.newPage();10const rootHostContext = page.rootHostContext();11console.log(rootHostContext);12{ root: { type: 'iframe', name: '', frameId: '1D9BDBE9A3D0A8B8B3C3E3F3B3F3B3F3' },13 [ { type: 'iframe', name: '', frameId: '1D9BDBE9A3D0A8B8B3C3E3F3B3F3B3F3' },14 { type: 'iframe', name: '', frameId: '1D9BDBE9A3D0A8B8B3C3E3F3B3F3B3F3' },15 { type: 'iframe', name: '', frameId: '1D9BDBE9A3D0A8B8B3C3E3F3B3F3B3F3' },16 { type: 'iframe', name: '', frameId: '1D9BDBE9A3D0A8B8B3C3E3F3B3F3B3F3' } ] }
Using AI Code Generation
1const { getRootHostContext } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');2const { BrowserContext } = require('playwright/lib/server/browserContext.js');3const { Page } = require('playwright/lib/server/page.js');4const { Frame } = require('playwright/lib/server/frames.js');5const { ElementHandle } = require('playwright/lib/server/dom.js');6const browser = await chromium.launch();7const context = await browser.newContext();8const page = await context.newPage();9const frame = page.mainFrame();10const element = await frame.$('selector');11const rootHostContext = getRootHostContext(new ElementHandle(null, element, null, null));12console.log(rootHostContext);13const { getRootHostContext } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');14const { BrowserContext } = require('playwright/lib/server/browserContext.js');15const { Page } = require('playwright/lib/server/page.js');16const { Frame } = require('playwright/lib/server/frames.js');17const { ElementHandle } = require('playwright/lib/server/dom.js');18const browser = await chromium.launch();19const context = await browser.newContext();20const page = await context.newPage();21const frame = page.mainFrame();22const element = await frame.$('selector');23const rootHostContext = getRootHostContext(new ElementHandle(null, element, null, null));24console.log(rootHostContext);
Using AI Code Generation
1const { getRootHostContext } = require('playwright/lib/server/browserContext');2const context = await browser.newContext();3const rootHostContext = getRootHostContext(context);4console.log(rootHostContext);5const { getRootHostContext } = require('playwright/lib/server/browserContext');6const context = await browser.newContext();7const rootHostContext = getRootHostContext(context);8console.log(rootHostContext);9const { getRootHostDevice } = require('playwright/lib/server/browserContext');10const context = await browser.newContext();11const rootHostDevice = getRootHostDevice(context);12console.log(rootHostDevice);13const { getRootHostDeviceDescriptor } = require('playwright/lib/server/browserContext');14const context = await browser.newContext();15const rootHostDeviceDescriptor = getRootHostDeviceDescriptor(context);16console.log(rootHostDeviceDescriptor);17const { getRootHostDeviceScaleFactor } = require('playwright/lib/server/browserContext');18const context = await browser.newContext();19const rootHostDeviceScaleFactor = getRootHostDeviceScaleFactor(context);20console.log(rootHostDeviceScaleFactor);21const { getRootHostFrame } = require('playwright/lib/server/browserContext');22const context = await browser.newContext();23const rootHostFrame = getRootHostFrame(context);24console.log(rootHostFrame);25const { getRootHostPage } = require('playwright/lib/server/browserContext');
Using AI Code Generation
1const { getRootHostContext } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');2const rootHostContext = getRootHostContext();3console.log(rootHostContext);4const { getRootHostContext } = require('playwright');5const rootHostContext = getRootHostContext();6console.log(rootHostContext);
Using AI Code Generation
1const { getRootHostContext } = require('playwright/lib/server/browserContext');2const rootHostContext = getRootHostContext();3console.log(rootHostContext);4const { getRootHostContext } = require('playwright/lib/server/browserContext');5const rootHostContext = getRootHostContext();6console.log(rootHostContext);7const { getRootHostContext } = require('playwright/lib/server/browserContext');8const rootHostContext = getRootHostContext();9console.log(rootHostContext);10const { getRootHostContext } = require('playwright/lib/server/browserContext');11const rootHostContext = getRootHostContext();12console.log(rootHostContext);13const { getRootHostContext } = require('playwright/lib/server/browserContext');14const rootHostContext = getRootHostContext();15console.log(rootHostContext);16const { getRootHostContext } = require('playwright/lib/server/browserContext');17const rootHostContext = getRootHostContext();18console.log(rootHostContext);19const { getRootHostContext } = require('playwright/lib/server/browserContext');20const rootHostContext = getRootHostContext();21console.log(rootHostContext);22const { getRootHostContext } = require('playwright/lib/server/browserContext');23const rootHostContext = getRootHostContext();24console.log(rootHostContext);25const { getRootHostContext } = require('playwright/lib/server/browserContext');26const rootHostContext = getRootHostContext();27console.log(rootHostContext);28const { getRootHostContext } = require('playwright/lib/server/browserContext');29const rootHostContext = getRootHostContext();30console.log(rootHostContext);31const { getRootHostContext } = require('playwright/lib/server/browserContext');
Using AI Code Generation
1const { Playwright } = require('playwright');2const { getRootHostContext } = Playwright._internalApi;3const { Playwright } = require('playwright');4const { getRootHostContext } = Playwright._internalApi;5const { Playwright } = require('playwright');6const { getRootHostContext } = Playwright._internalApi;7const { Playwright } = require('playwright');8const { getRootHostContext } = Playwright._internalApi;9const { Playwright } = require('playwright');10const { getRootHostContext } = Playwright._internalApi;11const { Playwright } = require('playwright');12const { getRootHostContext } = Playwright._internalApi;13const { Playwright } = require('playwright');14const { getRootHostContext } = Playwright._internalApi;15const { Playwright } = require('playwright');16const { getRootHostContext } = Playwright._internalApi;17const { Playwright } = require('playwright');18const { getRootHostContext } = Playwright._internalApi;19const { Playwright } = require('playwright');20const { getRootHostContext } = Playwright._internalApi;21const { Playwright } = require('playwright');22const { getRootHostContext } = Playwright._internalApi;23const { Playwright } = require('playwright');24const { getRootHostContext } = Playwright._internalApi;25const { Playwright } = require('playwright');26const { getRootHostContext
Using AI Code Generation
1const { getRootHostContext } = require('playwright/lib/server/dom.js');2const { createJSDOM } = require('jsdom');3const dom = createJSDOM(`<!DOCTYPE html><html><body><div id="root"></div></body></html>`);4const rootHostContext = getRootHostContext(dom.window.document.getElementById('root'));5console.log(rootHostContext);6HostContext {7 _rootContainer: HTMLDivElement {8 },9}
Using AI Code Generation
1const { getRootHostContext } = require('playwright/lib/server/common/webkit/webkit');2const { WebKit } = require('playwright/lib/server/webkit/webkit');3const { WebKitBrowser } = require('playwright/lib/server/webkit/webkitBrowser');4const { WebKitBrowserContext } = require('playwright/lib/server/webkit/webkitBrowserContext');5const { WebKitPage } = require('playwright/lib/server/webkit/webkitPage');6const { WebKitConnection } = require('playwright/lib/server/webkit/webkitConnection');7const { helper } = require('playwright/lib/server/helper');8const { debugLogger } = require('playwright/lib/utils/debugLogger');9const context = await browser.newContext();10const page = await context.newPage();11const webkitPage = page._delegate;12const rootHostContext = getRootHostContext(webkitPage);13const { WebKitBrowserContext } = require('playwright/lib/server/webkit/webkitBrowserContext');14const { helper } = require('playwright/lib/server/helper');15const { debugLogger } = require('playwright/lib/utils/debugLogger');16const { assert } = require('playwright/lib/utils/utils');17const { Events } = require('playwright/lib/server/events');18class BrowserContext extends events_1.EventEmitter {19 constructor(browser, options) {20 super();21 this._browser = browser;22 this._options = options;23 this._closed = false;24 this._pageBindings = new Map();25 this._routes = [];26 this._permissions = new Map();27 this._timeoutSettings = {};28 this._geolocation = null;29 this._extraHTTPHeaders = {};30 this._credentials = null;31 this._storageState = null;32 this._browserContextId = helper_1.helper.guid();33 this._firstPageCallback = () => { };34 this._closePromise = new Promise(f => this._closeCallback = f);35 this._closePromise.catch(() => { });36 this._browser._browserContextCreated(this);37 this._timeoutSettings = {38 };39 this._permissions = new Map(options.permissions);40 this._extraHTTPHeaders = Object.assign({}, options
Playwright tutorial
LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.
Chapters:
- What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
- How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
- Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
- What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
- Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
- Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
- Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
- Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
- Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
- Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
- Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
- Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.
Run Playwright Internal automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
